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Regiochemical Aspects in the Reaction of 2,3,5-Tri-O-benzoyl-D-ribofuranosyl Acetate with Silyl Enol Ethers Catalyzed by Stannic Chloride
Yokoyama, Yayoi S.,Elmoghayar, M. R. H.,Kuwajima, Isao
, p. 2673 - 2676 (2007/10/02)
In the reaction with silyl enol ethers catalyzed by stannic chloride, 2,3,5-tri-O-benzoyl-D-ribofuranosyl acetate behaves as an ambident electrophile; silyl enol ethers of ketones having α-hetero substituents afford C-1 adducts, whereas those of usual acy
